Blur¶

Usage: blur(radius [, sigma])

Description¶

This filter applies a gaussian blur to the image.

Arguments¶

radius - Radius used in the gaussian function to generate a matrix, maximum value is 150. The bigger the radius more blurred will be the image.
sigma - Optional. Defaults to the same value as the radius. Sigma used in the gaussian function.

Example¶

Picture before the blur filter

http://localhost:8888/unsafe/filters:blur(7)/https%3A%2F%2Fgithub.com%2Fthumbor%2Fthumbor%2Fraw%2Fmaster%2Fexample.jpg

Picture after the blur filter